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Recessed Washer NSN 5310-01-289-2590

Item Description

A washer of any peripheral shape having a centrally located hole. Both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. The thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. The maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. Excludes washer, concave, retainer, packing, and thrust type washers. See also spacer, sleeve; and spacer, stepped.

NSN 5310-01-289-2590 NSN: 5310-01-289-2590

Features and Characteristics

Hole Diameter
Between 1.252 inches and 1.254 inches
Outside Diameter
Between 2.435 inches and 2.437 inches
Overall Height
0.272 inches
Recess Diameter
2.0625 inches
Recess Depth
Between 0.050 inches and 0.052 inches
Surface Finish
32.0 microinches counterbore face
Special Features
Inside step diameter 1.495 in. Min, 1.500 in. Max
Material
Steel comp 1018
Material Specification
Astm a108 assn standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-b-416, type 2, class 3 federal specification all treatment responses
Style Designator
Recessed
FSC
5310 Nuts And Washers
NIIN
012892590
NSN
5310012892590

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1500AS103-1
Cage Code:
30003
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 7318220000
  • NAICS: 332722
  • SITC: 69422
  • Description: Washers other than lock washers, iron or steel
  • End Use (Code 12300):
    Finished metal shapes

Q & A

Frequently asked questions for NSN 5310-01-289-2590
What are the manufacturers of nsn 5310012892590?
Does this nsn 5310012892590 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5310012892590
A washer of any peripheral shape having a centrally located hole. both bearing surfaces are parallel and flat, but one or both of the bearing surfaces must be broken by a counterbore, countersink, or similarly shaped recess. the thickness must not exceed 25 per cent of the outside diameter or the largest outside dimension. the maximum limit of the tolerance or range applied to the thickness and/or largest outside dimension must be used to determine compliance. excludes washer, concave, retainer, packing, and thrust type washers. see also spacer, sleeve; and spacer, stepped.
Does nsn 5310012892590 contain any precious metals?
No precious metal content.
Does nsn 5310012892590 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 5310012892590?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
15933
FIIG:
A022B0
App. Key:
A
Cond. Code:
1
Status:
A

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